IMPROVEMENT OF DESIGNS OF OIL AND GAS SEPARATORS FOR OFFSHORE OIL PRODUCTION PLATFORMS

摘要

Several unique oil and gas separators (OGS) are proposed and their efficiency is evaluated based on laboratory and numerical experiments. The separation area is 20-30% larger in a vertical OGS with a screw shelf than in a standard OGS, which ensures congruent increase in OGS efficiency. In a horizontal OGS with a bubbler, the bubbling action on the fluid enhances efficiency by 40-50%. In a horizontal OGS with a bubbler and a heater, convective fluid flows rising above the heater accelerate ascent of large gas-carrier bubbles, whereupon the OGS efficiency increases by 55-75%. In a vertical OGS, plates of unique design can be used, in addition to a bubbler, for ease of separation of gas bubbles, in which case the efficiency generally increases by 60-80% as compared to the efficiency of standard vertical OGS.